Portable evaporative cooling fan



FIG. 1 is a top, front, right perspective view of a portable evaporative cooling fan showing our new design;

FIG. 2 is a top, rear, left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a top plan view thereof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a portable evaporative cooling fan, as shown and described. 